What are the reasons for the spread of computer viruses? How can you protect your computer from virus attacks?
A virus is a malicious program that is specifically designed to cause damage to your computer system. Viruses are grouped into different categories depending on the level of damage that they can cause to a system. Furthermore, there are worms that cause replications of files and folders in systems, and Trojans that create backdoors to the system to allow for unauthorized access. In addition, there are adware – programs that contain advertisements – with spyware attached to them that install when you run the adware.
Discussed here are the ways by which viruses spread and the guidelines to safeguard your system against them:
- Reasons for the spread of viruses
- How to protect your PC from viruses
- Types of antivirus software to protect your PC
Reasons for the spread of viruses
There are several means by which viruses spread on a computer, therefore you need to be aware of the means by which the viruses can be tracked and deleted. File sharing is one of the ways. There are downloads and pictures that have viruses, but are disguised as user files. Once the user runs these files, the viruses in them get activated and start multiplying on your computer. Some virus scripts make use of the weaknesses of the Internet Explorer to run infected scripts that are, in turn, installed on the system.
E-mail spamming is another way by which viruses can easily spread. Trojans are mostly spread this way as they are hidden in the file attachments sent by spammers and hijackers. Sharing of storage media files that are infected is yet another way of spreading virus infection from one PC to another.
How to protect your PC from viruses
In a network where resource sharing is crucial, the user can limit the access levels to “read only” to prevent spreading of viruses. Running antivirus programs and constantly updating them to detect the mutated viruses will help remove the already installed viruses and prevent future infections. Additional tools i.e. antispyware and Trojan blockers can help in detecting spyware that are not detected by antivirus software.
Types of antivirus software to protect your PC
In today’s technology market there are several antivirus programs that offer virus protection services to the users. You may need to know about the various types of antivirus programs that may help secure your computer, including AVG, Norman, Norton, McAfee, F-Secure, avast!, Arovax, CA, Lavasoft, Comodo, OMNIQUAD, and Kaspersky.
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